fix

Author: iliakan

5-regular-expressions/09-regexp-groups/3-find-decimal-positive-numbers/solution.md

@@ -1,16 +1,18 @@
 
-An integer number is `pattern:\d+`.
+An non-negative integer number is `pattern:\d+`. We should exclude `0` as the first digit, as we don't need zero, but we can allow it in further digits.
+
+So that gives us `pattern:[1-9]\d*`.
 
 A decimal part is: `pattern:\.\d+`.
 
 Because the decimal part is optional, let's put it in parentheses with the quantifier `pattern:'?'`.
 
-Finally we have the regexp: `pattern:\d+(\.\d+)?`:
+Finally we have the regexp: `pattern:[1-9]\d*(\.\d+)?`:
 
 ```js run
-let reg = /\d+(\.\d+)?/g;
+let reg = /[1-9]\d*(\.\d+)?/g;
 
-let str = "1.5 0 12. 123.4.";
+let str = "1.5 0 -5 12. 123.4.";
 
 alert( str.match(reg) );   // 1.5, 0, 12, 123.4
 ```

5-regular-expressions/09-regexp-groups/3-find-decimal-positive-numbers/task.md

@@ -6,7 +6,7 @@ An example of use:
 ```js
 let reg = /your regexp/g;
 
-let str = "1.5 0 12. 123.4.";
+let str = "1.5 0 -5 12. 123.4.";
 
-alert( str.match(reg) );   // 1.5, 0, 12, 123.4
+alert( str.match(reg) ); // 1.5, 12, 123.4 (ignores 0 and -5)
 ```